Underlying slip/twinning activities of Mg-xGd alloys investigated by modified lattice rotation analysis

Biaobiao Yang; Chenying Shi; Xianjue Ye; Jianwei Teng; Ruilin Lai; Yujie Cui; Dikai Guan; Hongwei Cui; Yunping Li; Akihiko Chiba

Journal of Magnesium and Alloys (Mar 2023)

Underlying slip/twinning activities of Mg-xGd alloys investigated by modified lattice rotation analysis

Biaobiao Yang,
Chenying Shi,
Xianjue Ye,
Jianwei Teng,
Ruilin Lai,
Yujie Cui,
Dikai Guan,
Hongwei Cui,
Yunping Li,
Akihiko Chiba

Affiliations

Biaobiao Yang: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China
Chenying Shi: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China
Xianjue Ye: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China
Jianwei Teng: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China
Ruilin Lai: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding authors.
Yujie Cui: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan; Corresponding authors.
Dikai Guan: Department of Materials Science and Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom
Hongwei Cui: School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
Yunping Li: State Key Lab for Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding authors.
Akihiko Chiba: Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan

Journal volume & issue: Vol. 11, no. 3
pp. 998 – 1015

Abstract

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The inconsistencies regarding the fundamental correlation between Gd content and slip (twinning) activities of Mg alloys appeal further investigations. However, the traditional slip dislocations analysis by TEM is time-consuming, and that by SEM/EBSD cannot recognize the partial slip modes. These urge a more efficient and comprehensive approach to easily distinguish all potential slip modes occurred concurrently in alloy matrix. Here we report a modified lattice rotation analysis that can distinguish all slip systems and provide statistical results for slip activities in Mg alloy matrix. Using this method, the high ductility of Mg-Gd alloy ascribed to the enhanced non-basal slips, cross-slip, and postponed twinning activities by Gd addition is quantitatively clarified.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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